US Bridges

Lebanon Troy TR 5 over Silver CR

Fair

St. Clair County, Illinois · 0.25 MI W Richwood R · Structure no. 082411900000000

Built
1986
39 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
115 ft
3 main spans
Daily traffic
300
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lebanon Troy TR 5 over Silver CR is a prestressed concrete box beam or girders - multiple carrying Lebanon Troy TR 5 over Silver CR in St. Clair County, Illinois. It was built in 1986, so it is 39 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 300 vehicles a day, roughly 9% of them trucks, projected to reach 379 by 2046. The structure is 115 ft (35.1 m) long and 28 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesLebanon Troy TR 5
CrossesSilver CR
Location0.25 MI W Richwood R
RouteCounty Highway 0
CountySt. Clair County
StateIllinois
Coordinates38.65006, -89.85019
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic379 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lebanon Troy TR 5 over Silver CR built?

It was built in 1986, making it 39 years old in 2025.

What condition is Lebanon Troy TR 5 over Silver CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does Lebanon Troy TR 5 over Silver CR carry?

About 300 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Lebanon Troy TR 5 over Silver CR?

The structure is 115 ft (35.1 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns Lebanon Troy TR 5 over Silver CR?

It is owned by the Town or Township Highway Agency.